308 



PROCEEDINGS OF THE NATIONAL MU8EUM. 



VOL. 42. 



Geographic tables — Continued. 



SUMMARY. 



* The numbers placed on the lines dividing the faunal column.s indicate the number of species common 

 to two adjacent areas. 



DISTRIBUTION OF SPECIES. 



In this list I have cited under each species all the available infor- 

 mation in the following sequence: Locality from which the material 

 was obtained including station number, depth in fathoms, character 

 of bottom, bottom temperature, salinity, number of specimens, and 

 disposition of material examined. 



PYRAMIDELLA (PYRAMIDELLA) BAIRDI Dall and Bartsch. 



Gulf of California: 1 specimen, type. Cat. No. 73932, U.S.N.M. 



PYRAMIDELLA (VOLUSPA) AURICOMA Dall. 



Gulf of California: 3 specimens (l=type). Cat. No. 32268, U.S.N.M. 

 Mazatlan, Mexico: 1 specimen. Cat. No. 168681, U.S.N.M. 



